US4144742A - Machine for testing bottles - Google Patents

Machine for testing bottles Download PDF

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Publication number
US4144742A
US4144742A US05/854,240 US85424077A US4144742A US 4144742 A US4144742 A US 4144742A US 85424077 A US85424077 A US 85424077A US 4144742 A US4144742 A US 4144742A
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US
United States
Prior art keywords
bottle
head
water
high pressure
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
US05/854,240
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English (en)
Inventor
Dieter K. Schmidt
Josef J. Buschor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Century Beverage Co
Original Assignee
New Century Beverage Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Century Beverage Co filed Critical New Century Beverage Co
Priority to US05/854,240 priority Critical patent/US4144742A/en
Priority to CA000316659A priority patent/CA1121663A/en
Priority to DE7878300658T priority patent/DE2860915D1/de
Priority to IT52009/78A priority patent/IT1106358B/it
Priority to JP14348878A priority patent/JPS5485086A/ja
Priority to EP78300658A priority patent/EP0002140B1/en
Application granted granted Critical
Publication of US4144742A publication Critical patent/US4144742A/en
Priority to US06/164,051 priority patent/USRE31385E/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing

Definitions

  • This invention relates to apparatus for testing beverage bottles to determine whether they will withstand internal pressure with an adequate degree of safety.
  • One approach is to apply mechanical pressure to the exterior of the bottle. However, it is not possible to apply a uniform pressure to the entire exterior of a bottle, and it does not simulate the internal pressure applied to a bottle which has been filled with product and capped. Furthermore, this approach is not well adapted to reveal the presence of defects in the crown of the bottle which may cause leaks.
  • U.S. Pat. No. 3,826,126 describes an operation which is advantageous, namely filling each bottle in turn with low pressure water and then, when the bottle is full, introducing into the bottle water at a high pressure for the purpose of testing.
  • the procedure of that patent is disadvantageous because it suspends a bottle during testing, therefore does not simulate the forces applied to a bottle during filling with product and capping; also the apparatus does not provide as good a seal while filling and testing as is desirable. Further, it is necessary during filling with low pressure water to leave clearance between the sealing chuck and the crown of the bottle for air to escape.
  • Yet another object is to provide apparatus, which will detect leaks due to faulty crowns.
  • FIG. 1 is a diagrammatic view of the apparatus including its pneumatic and hydraulic circuits
  • FIG. 2 is a view on a larger scale than that of FIG. 1, being a vertical mid-section through a turret showing a single filling and testing head and hydraulic and pneumatic connections to sources of air under pressure, water under low pressure and water at high pressure and showing also bottles of two different sizes and adjustments means to accommodate the different sizes;
  • FIG. 3 is a vertical mid-section through the testing head shown in FIG. 2, the air cylinder operating mechanism of FIG. 2 being shown only fragmentarily, the filling spout or quill being shown in the up position before it is inserted into a bottle;
  • FIG. 4 is a view similar to that of FIG. 3 but showing the quill in its down position within a filled bottle, showing the sealing chuck in engagement with the crown of the bottle and showing the positions of pertinent parts while hydraulic pressure is applied;
  • FIG. 5 is a section taken along the line 5--5 of FIG. 3 showing the manner in which the sealing chuck is mounted;
  • FIG. 6 is a fragmentary top plan view of the turret plates showing the manner in which the pockets in the turret are adjusted for bottles of different diameters (in this instance a small diameter);
  • FIG. 7 is a view similar to that of FIG. 6 but showing the turret plates in adjusted position for bottles of larger diameter.
  • FIG. 1 is a diagrammatic view showing the hydraulic and pneumatic circuits and showing the apparatus of a single testing head or station. It will be understood, and it will be more fully apparent from the description hereinbelow with reference to FIG. 2 that the present invention contemplates providing a rotary turret with pockets to receive bottles in succession from a bottle entry conveyor and to rotate them through a testing station into an exit bottle conveyor to the next unit, for example, a washer to wash the bottles before they are transported to a filling machine and thence to a capping machine.
  • Such inlet and outlet conveyors may be of conventional type, e.g. screw conveyors.
  • the invention may be employed with suitable modification for an in-line system in which there is a single testing head in line with the progression of bottles from an input point to an output point.
  • a rotary turret as described and illustrated hereinbelow.
  • Sufficient time is preferably allowed between the testing step and the washing step so that the water used for testing and still in the bottle will soak the interior of the bottle and facilitate washing. This is of importance in the processing of used returnable bottles.
  • the apparatus is generally designated by the reference numeral 10.
  • a bottle 11 is shown having the usual tapered neck 12 and rolled rim or crown 13.
  • a filling and pressure testing head or unit 14 is shown having a tube or quill 15 which is to be inserted into the bottle for the purpose of filling with low pressure water.
  • a sensing unit 16 having a rod 17 is provided, the function and purpose of which are to sense whether a bottle has failed or has a leak and, if so, to energize a device (which is well known in the art and requires no description herein) which removes the bottle that has failed or has evidenced a leak.
  • a pneumatic operating and control unit 18 including a cylinder 19, a rod 20 and a piston 21 which is reciprocable within the cylinder 19.
  • Air supply line 30 (see the upper right portion of FIG. 1) connects a source of air under pressure (not shown) e.g. 80 p.s.i. gauge to a rotary valve 31 which opens and closes connection between the inlet line 30 and outlet line 32 in timed relation to rotation of the turret 140 (see FIG. 2) to provide air under pressure when and as needed and to shut off communication of air pressure when desired.
  • Line 32 connects to a pressure reducing valve 33 of known construction and air at reduced pressure (e.g. 20 p.s.i. guage) passes through a line 34 to the lower end of cylinder 19 such that it acts to lift the piston 21.
  • a branch 35 in line 32 upstream from the pressure reducing valve 33 connects to a three-way valve 36 having an exhaust port 37 and a port 38 which connects to a line 39 to the upper end of cylinder 19 above the piston 21.
  • Valve operating means is provided in the form of a stationary cam 40 fixed to the frame of the machine which in contacted by a cam follower roller 41 which is rotatably mounted on a rod 42, the movement and position of which determine whether high pressure air is delivered through line 35, valve 36 and line 39 to the upper end of cylinder 19.
  • the rotary member 53a is formed at intervals with outlet ports 54 which connect through a line 55 to a check valve 56 having a ball 57 which seats against a seat 57a.
  • the outlet 58 of the check valve 56 connects by a line 59 to filling and testing unit 14.
  • the high pressure water circuit comprises a line 60 connected to a high pressure source of water, for example, 150 p.s.i.g. and is in turn connected by the rotary valve 31 to a line 61.
  • Line 61 is connected to a valve 62 having an outlet port 63 which is opened and closed by cam means including a stationary cam 64 fixed to the frame of the machine, a cam follower roller 65 and a rod 66.
  • cam means including a stationary cam 64 fixed to the frame of the machine, a cam follower roller 65 and a rod 66.
  • the valve 62 is operated to connect the high pressure water supply line 61 with the port 63 whereby high pressure water is delivered through line 67 to a check valve 68 having a ball 69 seating against the seat 69a and having outlet port 69b.
  • Line 70 connects the outlet of check valve 68 with the inlet port 71 of an air bleed or shuttle valve 72.
  • the valve 72 has, besides the inlet port 71, outlet ports 73 and 74, a valve seat 75 for a ball 76, another seat 77 for the ball 76 and a spring 78 which normally acts to cause the ball 76 to assume the position shown in FIG. 1, i.e. closing port 71 and opening port 74.
  • the port 73 is connected by a line 79 to the filling and testing unit 14.
  • FIG. 2 wherein identical reference numerals identify the same parts as in FIG. 1, as will be seen many of the connecting lines are of flexible material to accommodate themselves to up and down movement of the testing head 14 and the pneumatic unit 18.
  • the head 14 comprises, as its main structural element, a cylinder 89 formed with a central cylindrical cavity 90 formed with a bottom shoulder 91 and an extension 92 of smaller diameter than the cavity 90.
  • a washer 93 is seated on the shoulder 91.
  • Within the cavity 90 there is a piston 94 which reciprocates within the cavity 90, its upward movement being limited by a ring 95 held in place by lock ring 96.
  • the lower end of piston rod 20 is threaded into the piston 94.
  • An O-ring 98 seated in an annular groove 99 in the piston 94 serves to seal the piston against the walls of the cavity 90.
  • the piston 94 is formed with a cavity 110 to receive a spring 112 which is confined between the washer 93 and the upper end of the cavity 110.
  • the cavity 110 has an extension 110a of a smaller diameter which has a radial opening 111 which is intended to communicate at the proper moment with low pressure water line 59.
  • a pad 112a secured to the lower end of piston 94 serves as a seal.
  • the sensor 16 comprises a body portion 120 threaded into the body 89 and formed with a passageway 122 which enlarges into a chamber 123 thus providing a shoulder 124.
  • An O-ring 125 is provided as a seal to prevent outflow of fluid.
  • a spring 125 confined between a collar 126 on the rod 17 and a washer 127 held in place by a lock ring 128 normally urges the rod 17 and its inner extension to the right as viewed in FIG. 3 so that the tip of the extension normally projects into an annular cavity or passage 130 surrounding the quill 15.
  • the quill 15, as will be seen, is formed with a passage 15a.
  • the high pressure water line 79 is threaded into the body 89 and communicates with a radial passage 135 which in turn communicates with the annular passage 130.
  • a sealing chuck 140 is shown which is of rubber or resilient plastic construction and is sufficiently resilient so that under pressure it will seal firmly against the crown 13 of a bottle as shown in FIG. 4.
  • the chuck 140 fits into a socket 141 at the lower end of the body 89.
  • the wall of socket 141 is formed with slot 142 to receive a clip 143 which serves to hold the chuck in place but which (see FIG. 5) can be pulled out and detached for replacement of the chuck.
  • the chuck 140 has a stepped interior configuration including a cylindrical mid-portion 146, a tapered, frusto-conical top portion 147 which seats firmly against the crown of a bottle as shown in FIG. 4 and a flaring bottom portion 148.
  • the frusto-conical portion 147 is tangent to the outer part of the crown 13 of the bottle 11 such that it adjusts to small, normal variations in the shape of the crown.
  • the turret which carries the several units 14 and 18 is generally designated by the reference numeral 150 and it comprises plates 151 welded to the main turret shaft 152 which is journalled in the frame 153 of the machine.
  • a plate 154 is provided which is part of an angle piece 154a welded or otherwise suitably connected to the frame members of the turret and upon which a bottle 11 is seated to be held in proper alignment with the quill 15.
  • Plates of double thickness 155 and 155a are provided which cup the bottle on the inward side. Rails 157 held by brackets 158 confine the bottle on the outer side.
  • the plates 155 and 155a are secured together by means of screws 161 and slots 162.
  • the pockets 163 which receive the bottles may be adjusted in size to accommodate bottles of smaller diameter (FIG. 6) or larger diameter (FIG. 7).
  • the screws 161 are tightened.
  • height adjustment means comprising a bracket 170 secured to the frame of the machine on which an angle bracket 171 is mounted by a screw 172 in an elongated vertical slot (not shown).
  • the bracket 171 may be moved up or down, for example, between the position shown in FIG. 2 for tall bottles and a lower position (not shown) for short bottles.
  • the cap 173 on the rod 20 contacts the bracket in its up position (which is determined by the height of the bracket 171) thereby limiting upward travel of the rod 20. By this means, the travel is adjusted for a large bottle or a small bottle.
  • the rod 17 of sensor 16 is intended, when a bottle holds pressure properly, to contact a micro switch 180 which requires height adjustment for bottles of different heights. This is accomplished by mounting the micro switch 180 on a bracket 181 which is connected by a screw 182 to a slot 183 on a post 184, which permits height adjustment.
  • the apparatus functions as follows:
  • An infeed such as a well known type of screw feed (not shown) feeds the bottles in timed relation to rotation of the main turret shaft 152, such that each bottle in turn is deposited in a pocket 163 in the turret.
  • cam 40 acts on roller 41 to connect high pressure air line 35 to line 39 and thereby to cause piston 21 to undergo a down stroke together with the body 89 of head 14 and the quill 15.
  • FIG. 4 as the chuck 140 seats on the crown 13 of a bottle as shown in FIG. 4, further downward movement of body 89 is arrested.
  • cam 64 acts on roller 65 to cause valve 62 to connect high pressure water from line 61 to line 67 and thence through check valve 68 and line 70 to shuttle valve 72.
  • the high pressure water causes ball 76 to unseat from the position shown in FIG. 1 and to seat on the bottom seat 77, thereby closing port 74.
  • High pressure water passes by way of line 79 to passage 135 (see FIG. 4) and through annular space 130 and chuck 140. This high pressure acts on the inner end of rod 17 and pushes it to the outer position shown in broken lines in FIG. 4.
  • the rod therefore contacts micro-switch 180 (see FIG.
  • the cams 40 and 64 act to shut off the supply of high pressure water to the head 14 and of high pressure air to the top of cylinder 19, whereupon lower pressure air (which is always supplied to the bottom of cylinder 19 through line 34) acts to raise piston 21 and with it head 14 and to return piston 94 to the position shown in FIG. 3 in readiness for another cycle.
  • Timing is accomplished by valves 31 and 53 and by cams 40 and 64.
  • Valve 53 is adjusted so that each bottle is slightly overfilled with water.
  • Cam 64 is designed and/or adjusted so that high pressure water is supplied for a suitable period of time, e.g. 0.2 second in the case of conventional 6 to 8 fluid ounce bottles and to hold the high pressure for about 0.5 second. These dwell periods are, of course, subject to change according to requirements.
  • the tube or quill 15 may be dispensed with and the chuck 140 may be formed with inner and outer passages, corresponding to passages 15a and 130.
  • a tube or quill which extends into a bottle and which forms with the chuck an annular passage is preferred.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
US05/854,240 1977-11-23 1977-11-23 Machine for testing bottles Ceased US4144742A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US05/854,240 US4144742A (en) 1977-11-23 1977-11-23 Machine for testing bottles
CA000316659A CA1121663A (en) 1977-11-23 1978-11-22 Machine for testing bottles
DE7878300658T DE2860915D1 (en) 1977-11-23 1978-11-22 Apparatus for testing bottles
IT52009/78A IT1106358B (it) 1977-11-23 1978-11-22 Macchina e procedimento per il collaudo a pressione di bottiglie
JP14348878A JPS5485086A (en) 1977-11-23 1978-11-22 Machine for testing bottle
EP78300658A EP0002140B1 (en) 1977-11-23 1978-11-22 Apparatus for testing bottles
US06/164,051 USRE31385E (en) 1977-11-23 1980-06-30 Machine for testing bottles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/854,240 US4144742A (en) 1977-11-23 1977-11-23 Machine for testing bottles

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US06/164,051 Reissue USRE31385E (en) 1977-11-23 1980-06-30 Machine for testing bottles

Publications (1)

Publication Number Publication Date
US4144742A true US4144742A (en) 1979-03-20

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ID=25318127

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Application Number Title Priority Date Filing Date
US05/854,240 Ceased US4144742A (en) 1977-11-23 1977-11-23 Machine for testing bottles

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US (1) US4144742A (it)
EP (1) EP0002140B1 (it)
JP (1) JPS5485086A (it)
CA (1) CA1121663A (it)
DE (1) DE2860915D1 (it)
IT (1) IT1106358B (it)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637249A (en) * 1985-03-20 1987-01-20 Ishizaki Press Kogyo Co., Ltd. Battery can hole detecting apparatus
US4708014A (en) * 1984-07-13 1987-11-24 501 A/s Moss Glasveark Device for testing of containers as to leakage or defects
US4788850A (en) * 1987-04-06 1988-12-06 Five X Corporation Bottle testing apparatus
US6164122A (en) * 1999-04-21 2000-12-26 Carter-Wallace, Inc. System and method including multiple test chambers for automated testing for holes in prophylactic device
EP1420241A4 (en) * 2001-07-25 2007-03-07 Daicel Chem PRESSURE RESISTANCE EVALUATION PROCEDURES
CN103712859A (zh) * 2012-09-29 2014-04-09 成都金福天下投资管理有限公司 瓶体水压强度试验台
US20220011182A1 (en) * 2020-07-13 2022-01-13 Smart Skin Technologies Inc. Devices and methods for detecting axial forces applied to a container
US11247888B2 (en) * 2017-06-28 2022-02-15 Krones Ag Method for tightness control of a filling-sealing unit for containers, and filling-sealing machine
CN114112711A (zh) * 2021-12-02 2022-03-01 怀宁日日鑫纸塑有限公司 一次性纸杯立体强度检测装置
US20220214242A1 (en) * 2019-04-08 2022-07-07 Vetter Pharma-Fertigung GmbH & Co. KG Adapter part for connecting a medical hollow body to a tension/compression measuring device, test assembly, method for testing a tightness of a medical hollow body, and use of a tension/compression measuring device
IT202100028322A1 (it) * 2021-11-08 2023-05-08 Svs Sandri S R L Macchina per test di pressione interna per bottiglie in vetro

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2533247B2 (ja) * 1991-03-20 1996-09-11 日本碍子株式会社 β−アルミナ管の内水圧強度検査装置
FR2683904B1 (fr) * 1991-11-15 1996-03-01 Rheo Process Procede et installation pour controler, prealablement au lavage, l'etancheite d'un fut de stockage temporaire d'un produit liquide devant etre distribue ulterieurement sous pression.
DE19718615A1 (de) * 1996-07-06 1998-01-08 Cerasiv Gmbh Verfahren zum Prüfen von keramischen Pfannen für Hüftgelenkendoprothesen
CN102455265A (zh) * 2011-04-28 2012-05-16 双峰格雷斯海姆医药玻璃（丹阳）有限公司 一种玻璃瓶内压力检测仪
CN103207053B (zh) * 2013-04-09 2015-09-30 合肥汇通控股股份有限公司 洗涤壶漏水检测装置
CN104198293A (zh) * 2014-09-18 2014-12-10 江苏中宏机械制造有限公司 一种具有调速与连续补水功能的气瓶水压爆破试验装置
CN104977144A (zh) * 2015-06-19 2015-10-14 柳州市通顺汽车部件有限责任公司 一种洗涤壶的气密性检测设备
JP6919362B2 (ja) * 2017-06-27 2021-08-18 トヨタ自動車株式会社 タンクへの注水方法

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US991664A (en) * 1908-03-09 1911-05-09 Bottlers Machinery Mfg Company Filling-machine.
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US3805594A (en) * 1971-10-19 1974-04-23 Mitsubishi Heavy Ind Ltd Pressure testing apparatus for bottles
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FR1130505A (fr) * 1955-08-16 1957-02-06 Schneider Werke G M B H Machine pour les essais en pression des récipients, plus spécialement des bouteilles à gaz liquéfiés
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JPS5654126Y2 (it) * 1975-10-22 1981-12-17

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US280234A (en) * 1883-06-26 pearson
US582285A (en) * 1897-05-11 And frank c
US991664A (en) * 1908-03-09 1911-05-09 Bottlers Machinery Mfg Company Filling-machine.
US1022968A (en) * 1910-10-20 1912-04-09 Ludwig Neumayer Apparatus for aerating liquids.
US2372899A (en) * 1941-07-12 1945-04-03 Liquid Carbonic Corp Bottle filler and siruper
US2689475A (en) * 1951-10-10 1954-09-21 Truman L Blanton Weak bottle eliminator
US3010310A (en) * 1957-12-04 1961-11-28 Emhart Mfg Co Apparatus for testing glass containers
US3650146A (en) * 1970-06-02 1972-03-21 Barry Wehmiller Co Container pressure testing apparatus
US3805594A (en) * 1971-10-19 1974-04-23 Mitsubishi Heavy Ind Ltd Pressure testing apparatus for bottles
US3826126A (en) * 1971-12-22 1974-07-30 Yamamura Glass Co Ltd Apparatus for testing pressure resistance of containers
US3785195A (en) * 1972-08-07 1974-01-15 Yamamura Glass Co Ltd Apparatus for testing pressure resistance of bottles

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708014A (en) * 1984-07-13 1987-11-24 501 A/s Moss Glasveark Device for testing of containers as to leakage or defects
US4637249A (en) * 1985-03-20 1987-01-20 Ishizaki Press Kogyo Co., Ltd. Battery can hole detecting apparatus
US4788850A (en) * 1987-04-06 1988-12-06 Five X Corporation Bottle testing apparatus
US6164122A (en) * 1999-04-21 2000-12-26 Carter-Wallace, Inc. System and method including multiple test chambers for automated testing for holes in prophylactic device
EP1420241A4 (en) * 2001-07-25 2007-03-07 Daicel Chem PRESSURE RESISTANCE EVALUATION PROCEDURES
CN103712859A (zh) * 2012-09-29 2014-04-09 成都金福天下投资管理有限公司 瓶体水压强度试验台
US11247888B2 (en) * 2017-06-28 2022-02-15 Krones Ag Method for tightness control of a filling-sealing unit for containers, and filling-sealing machine
US20220214242A1 (en) * 2019-04-08 2022-07-07 Vetter Pharma-Fertigung GmbH & Co. KG Adapter part for connecting a medical hollow body to a tension/compression measuring device, test assembly, method for testing a tightness of a medical hollow body, and use of a tension/compression measuring device
US12163866B2 (en) * 2019-04-08 2024-12-10 Vetter Pharma-Fertigung GmbH & Co. KG Adapter part for connecting a medical hollow body to a tension/compression measuring device, test assembly, method for testing a tightness of a medical hollow body, and use of a tension/compression measuring device
US20220011182A1 (en) * 2020-07-13 2022-01-13 Smart Skin Technologies Inc. Devices and methods for detecting axial forces applied to a container
US11326968B2 (en) * 2020-07-13 2022-05-10 Smart Skin Technologies Inc. Devices and methods for detecting axial forces applied to a container
US11656136B2 (en) 2020-07-13 2023-05-23 Smart Skin Technologies Inc. Devices and methods for detecting axial forces applied to a container
IT202100028322A1 (it) * 2021-11-08 2023-05-08 Svs Sandri S R L Macchina per test di pressione interna per bottiglie in vetro
CN114112711A (zh) * 2021-12-02 2022-03-01 怀宁日日鑫纸塑有限公司 一次性纸杯立体强度检测装置

Also Published As

Publication number Publication date
IT7852009A0 (it) 1978-11-22
EP0002140A1 (en) 1979-05-30
EP0002140B1 (en) 1981-08-05
DE2860915D1 (en) 1981-11-05
JPS5485086A (en) 1979-07-06
IT1106358B (it) 1985-11-11
CA1121663A (en) 1982-04-13

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